Eleoteio igniting apparatus for gas engines



(No Model'.) 2 SheetsSheet 1.

- 11mm. ELEGTRIG IGNITING APPARATUS FOR GAS ENGINES.

1%,545553. Peteeted Sept. 3; 1895.

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. ty/ r/VESSES: 4 INVENTOI? M By 7 H I ATTORNEYS (No Model.)

I I 2 Sheets-Sheet 2. H. THAU.

3130mm IGNITING APPARATUS FOR GAS ENGINE-S. I No. 545,553; I Patented Sept. 3,1895."

Ml 'r & I I l I I31 I a F E l v i MU V v v R 6 6' Y xrron/vsrs.

UN TED STATES PATENT OFFIcE.

' HENRY enn, or new YORK, N. Y., ASSIGNORTO JAMES W JIRWIN, or

' SAME PLACE.

ELECTRIC IGNiTlNG APPARATU s FOR,GAS ENGINES.

SPECIFICATION formihg part of Letters Patent No. 545,553, dated September 3, 1895. tipplicationiiled October 20, 1894- Berla.l No. 526A33. (No model.)

1'0 all whom it may concern: I

Be it known that I, HENRY THAU, a citizen of the United States, residing at the cityof New York, in the county and State of New 5 York, have invented certain new and useful Improvements in Electric Igniting Apparatus forGas-Engines, of which the following is a full, clear, and exact desr'sription. y

' Myinvention relates more particuiarly to .that'class of. igniting apparatus wherein the I charge of gas inthe cylinder is exploded by means of an electric spark;,.and it consists in the combination, connection, and arrangement of parts hereinafter more fully set forth. 1 5 The object of my invention is to provide a simple, efficient, and reliable means for producing an electric current just before the spark-is required to explode the gas-charge in the'cylinder, and then break the circuit immcdiately with the production of the spark andv permit the, circuit to remain so untila current is again required.

The further object of my invention is to'accomplish the above results without-diverting 2 5 any appreciable part of the'output of power of the engine. In' the accompanying drawings, forming part of this specification, wherein like letters indicate like parts, Figure 1 shows a. side ele- 0 vation of a gas-engine with my improved igniting apparatus applied thereto, detail central vertical section of the valvechest, showing the rotary valve and the cou-v tacts within and without the cylinder operated by the valve-shaft. Fig. 3 is asection of f the same on the line 33 of Fig. 2, showing-the position of the contacts within the cylinder and (in dotted lines) the contacts outside of the cylinder, consistingof thespring-contact and 40 cam-disk on the valve-shaft. Fig. 4 is 2. diagram showing the relative positions of the mam-disk and the spri g-contact at the moment when the wiping-contacts within the cylinder produce a spark to. ignite'the gas-" charge therein.

lnthedrawings, A designates the base of I the gas-engine provided with journals a a, to support the crank-shaft .13, havingkeyed thereto a pulley (3, two fiy-wheels DD, and a o sprocket-wheel E. Upon the base is sup- Y The wire Q, constituting one pole of the dynamo, is grounded-on the engine,.and the Fig. 2 is a trical contact with thecam portion ,0! the disk ported the cylinder F, within which works a piston F, having the piston-rod connected to the crank-shaft B.

Integral with the cylinder F and having ports communicating therewith is the valvechest G, provided with ages-supply pipe, an

. air pipe H, a mixing-valve, and an exhaustpipe H leading from the topthere'of. 'Within this chest G, upona seat, works the. rotary 1 valve G, keyed to and operatedby the shaft 6.0

L, sprocket-wheel J, chainbelt -K, which.. passes over said sprocket-wheel J, and the sprocket-wheel E on the crank-shaft B. This latter sprocket-wheel E, being just one-half the'diameter of the sprocket-wheel J, enables thesame to make two complete revolutions to each one revolution of the sprocket-wheel J and the rotary valve G within the chest G. the sprocket-wheel J 'and-rotary'valve Gr be-vv ing keyed to the shaft L.

Upon a platform M, bolted to' the gas-engine, is firmly sup orted a; small yn'amo N, operated by the be t P,which p see over they ilywheel D of the engine and the p lieywheel 0 on the armature-shaft.

other wire 3, constituting the opposite pole, I is connected to the contact S, extending throng-h and into the cylinder F and supported in the block. T, which is insulated from the engine and cylinder by a plateof non-conduct-1 ing material U, and the said block T-and plate U are held in place by insulated screws b b'.*

From the contact S the wire R- passes to the "8 "FY-shaped support V, to which it is connected bya screw. This support is likewise insulated from the engine proper by aisimilar plate of non-conductingmaterial W, placed between the-engine and the support, and is held in position by insulated screws (1 d." From the prhjectiug end of this T-shaped' .tupport V extends a spring-contact Xyfastened thereto by a screw and forming aneleci '95 Y when the same rubs against it. This camdisk Y and spring-contact X, representing the two terminals of the dynamo-circuit, will, 2 when the cam portion of the disk Y rubs against the spring contact X, complete the rod the. engine with the circuit closing device arranged to operate without the cylinder, of the sparking device arranged I to operate within the cylinder to form a contact therein before the circuit completed without the cylinder is broken, and to continue said contact within said cylinderlatter th e "conducting continuity of the circuit closingdevice without the cylinder is broken until a spark is produced within said cylinder to ignite and explode the gas charge therein, and

" specified.

thedynamo circuit hrokem-suhstaptialiy as.

' '2. In an electric igniting apparatus for gas engines the combination of conductor'ma cam adiek carried by the valve shaft5' shaft beingoperatcd bythe crank shaft, a contact secured fto an Said val'v e iineuiated, Support-on; the engine, saidcontac't and cam-disk repreeenting the two terminals of the dynamo cifri cqit, a fixed contactextending into the'cylin-T' nam'o' p'uiley and' the fly whcel'of the engine; to operate the dynamo, euhstn tially as, and

-Ifor-the purpQz cs'set Iorth. I V v Signed at the city ;-of. New. York; in 191035 contact and thefcoutaetextendinginto 3' the cylindenoand abeltpaseiug overjthedy- 

